AHT20+BMP280 Temperature Humidity Air Pressure Module High-precision Digital Temperature Humidity and Air Pressure Sensor

Description

Product Overview

Introducing the AHT20+BMP280 Temperature Humidity Air Pressure Module – a high‑precision, dual‑sensor solution that delivers accurate temperature, humidity, and barometric pressure readings in a compact, low‑power package. Designed for IoT, industrial, and hobbyist projects, this module seamlessly integrates with microcontrollers such as Arduino, Raspberry Pi, ESP32, and STM32.

Key Highlights

• Dual‑Sensor Integration: Combines the AHT20 (temperature & humidity) and BMP280 (pressure) into one reliable module.
• High Accuracy: ±0.5 °C temperature, ±3 % RH humidity, ±0.1 hPa pressure for precise environmental monitoring.
• Low Power Consumption: < 1 mA in sleep mode, ideal for battery‑powered applications.
• Wide Operating Range: -40 °C to +85 °C, 0 % to 100 % RH, and 300 hPa to 1100 hPa.
• Digital I²C Interface: Simple 4‑wire communication compatible with most development boards.
• Robust Packaging: Durable metal housing protects against moisture and vibration.
• Easy Firmware Integration: Includes example code for Arduino, ESP32, and STM32 platforms.
• Ideal Applications: Weather stations, HVAC systems, smart agriculture, indoor air quality monitors, and more.

Why Choose This Module?

With its dual‑sensor design, you eliminate the need for separate temperature/humidity and pressure modules, saving space and simplifying wiring. The module’s low power profile ensures long battery life for portable devices, while its high accuracy guarantees reliable data for critical monitoring tasks. Whether you’re building a home automation system, a data‑logging solution, or a research prototype, the AHT20+BMP280 offers the performance and reliability you need.

Specifications

• Temperature: -40 °C to +85 °C, ±0.5 °C accuracy
• Humidity: 0 % to 100 % RH, ±3 % RH accuracy
• Pressure: 300 hPa to 1100 hPa, ±0.1 hPa accuracy
• Interface: I²C (4‑wire)
• Power Supply: 1.8 V to 3.6 V (recommended 3.3 V)
• Operating Current: 0.6 mA (active), < 1 µA (sleep)
• Dimensions: 15 mm × 15 mm × 5 mm (including PCB)
• Package: Metal housing with PCB

Installation & Setup

1. Connect VCC to 3.3 V and GND to ground.
2. Wire SDA and SCL to your microcontroller’s I²C pins.
3. Pull‑up resistors (4.7 kΩ) are optional but recommended.
4. Load the provided example sketch, adjust the I²C address if needed, and start reading sensor data.

Support & Resources

Our comprehensive documentation includes wiring diagrams, code libraries, and troubleshooting tips. For additional assistance, contact our support team or visit our community forum.